Being current is the state of being up-to-date or relevant. There are several antonyms that describe the opposite of being current. One such antonym is outdated, which means not current or no longer relevant. Another antonym for being current is old-fashioned or antiquated, which means something is out of style or not fashionable. Irrelevant is another antonym for being current, meaning not applicable to the present or not important. Being obsolete is also an antonym for being current, which means something is no longer in use or no longer practical. These antonyms describe the opposite of being current and indicate something is not contemporary or relevant in the present day.